Hydraulic block, hydraulic assembly, brake suspension system and vehicle

Abstract

The invention relates to a hydraulic block, a hydraulic assembly, a brake suspension system and a vehicle, the hydraulic block comprises a hydraulic block body, and the hydraulic block body is provided with an inlet used for communicating with a liquid outlet of a motor pump; the first outlet is used for being communicated with a liquid inlet of a hydraulic suspension subsystem of a wheel of a corresponding vehicle; the second outlet is used for being communicated with a liquid inlet of a hydraulic braking subsystem of a wheel of the corresponding vehicle; the communicating channels are respectively used for communicating the inlet with the outlet I and communicating the inlet with the outlet II. In this way, hydraulic oil can be selectively guided to the hydraulic suspension subsystem through the hydraulic block body inlet to adjust the suspension state of the vehicle and guided to the hydraulic braking subsystem to brake the vehicle, and therefore the arrangement structure of hydraulic pipelines and valve bodies in the hydraulic suspension system and the hydraulic braking system in a vehicle chassis is simplified; and the integration degree of the chassis of the vehicle is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical fields of vehicle suspension and braking, and in particular, to a hydraulic block, a hydraulic assembly, a braking suspension system, and a vehicle. Background Art

[0002] In related technologies, the hydraulic suspension system and the hydraulic braking system of a vehicle are important components of the vehicle. The hydraulic suspension system of the vehicle usually drives a shock absorber corresponding to a wheel to lift and lower through a hydraulic pump driving a hydraulic cylinder to adjust the suspension of the vehicle. The hydraulic braking system of the vehicle generates hydraulic pressure in a master cylinder by stepping on a brake pedal to drive brake pads or brake drums to brake the wheels. The brake pipelines in the hydraulic braking system are connected to the four wheels. Therefore, when the vehicle brakes, all four wheels brake together.

[0003] In related technologies, since the hydraulic suspension system and the hydraulic braking system of the vehicle are separately arranged, a large number of valve bodies and hydraulic pipelines of the hydraulic suspension system and the hydraulic braking system need to be arranged on the vehicle chassis. Thus, the arrangement of the hydraulic pipelines and valve bodies on the chassis is complex, the integration degree of the chassis is low, and the weight of the chassis is large. Summary of the Invention

[0004] The purpose of the present disclosure is to provide a hydraulic block, a hydraulic assembly, a braking suspension system, and a vehicle. The hydraulic block has a high integration degree and can reduce the arrangement of hydraulic pipelines on the chassis and reduce the weight of the chassis, so as to at least partially solve the problems in related technologies.

[0005] To achieve the above purpose, on one hand, the present disclosure provides a hydraulic block for a vehicle, including: a hydraulic block body, the hydraulic block body having: an inlet for communicating with the liquid outlet of a motor pump; a first outlet for communicating with the hydraulic suspension subsystem of a corresponding wheel of the vehicle; a second outlet for communicating with the hydraulic braking subsystem of a corresponding wheel of the vehicle; and a communication channel for communicating the inlet with the first outlet and the inlet with the second outlet.

[0006] Optionally, the hydraulic block body further has a mounting structure for mounting a control valve, so that the inlet of the hydraulic block body can be communicatively connected to the hydraulic suspension subsystem and the hydraulic braking subsystem in a switchable manner.

[0007] Optionally, the mounting structure is configured as a mounting hole communicating with the communication channel and extending to the surface of the hydraulic block body; and / or the mounting structure is configured as a mounting groove formed in the communication channel.

[0008] Optionally, the inlet includes a first inlet for communicating with the first liquid outlet of the motor pump and a second inlet for communicating with the second liquid outlet of the motor pump. The first outlet of the outlet one includes a first outlet for communicating with the first liquid inlet of the hydraulic suspension subsystem and a second outlet for communicating with the second liquid inlet of the hydraulic suspension subsystem. The second outlet of the outlet two includes a third outlet for communicating with the liquid inlet of the hydraulic braking subsystem. The plurality of communication channels include a first channel communicating the first inlet and the first outlet, a second channel communicating the second inlet and the second outlet, a third channel communicating the first inlet and the third outlet, and a fourth channel communicating the second inlet and the third outlet. The plurality of mounting structures include a first mounting hole provided on the first channel, a second mounting hole provided on the second channel, a first mounting groove provided on the third channel, and a second mounting groove provided on the fourth channel. The first mounting hole, the second mounting hole, the first mounting groove, and the second mounting groove are all used for mounting control valves so that the hydraulic oil enters the hydraulic suspension subsystem to adjust the suspension state of the vehicle and enters the hydraulic braking subsystem to brake the vehicle.

[0009] Optionally, a partial channel of the third channel and the fourth channel near the third outlet overlaps to form a pressure building channel. The liquid outlet of the pressure building channel communicates with the oil inlet of the hydraulic braking subsystem. A third mounting hole for mounting a control valve is provided on the pressure building channel.

[0010] Optionally, the hydraulic block further includes a pressure relief channel. A fourth mounting hole for mounting a control valve is provided on the pressure relief channel. One end of the pressure relief channel communicates with the liquid inlet of the hydraulic braking subsystem, and the other end communicates with the first inlet and the second inlet respectively.

[0011] Optionally, the pressure relief channel includes a common pressure relief channel, a first pressure relief channel branch, and a second pressure relief channel branch. The fourth mounting hole is provided on the common pressure relief channel. One end of the common pressure relief channel communicates with the liquid inlet of the hydraulic braking subsystem, and the other end communicates with the first pressure relief channel branch and the second pressure relief channel branch respectively. One of the first pressure relief channel branch and the second pressure relief channel branch communicates with the first inlet, and the other communicates with the second inlet. A third mounting groove for mounting a control valve is provided on the first pressure relief channel branch, and a fourth mounting groove for mounting a control valve is provided on the second pressure relief channel branch.

[0012] Optionally, the hydraulic block further includes a liquid storage assembly, the liquid storage assembly includes a liquid storage tank and a liquid replenishing channel communicating with the liquid storage tank, the liquid storage tank is arranged in the hydraulic block body, the liquid inlet of the liquid replenishing channel communicates with the liquid storage tank, and the liquid outlets of the liquid replenishing channel communicate with the first inlet and the second inlet respectively; or the liquid storage tank is arranged at an interval from the hydraulic block body, the liquid inlet of the liquid replenishing channel communicates with the liquid storage tank, and the liquid outlets of the liquid replenishing channel communicate with the first inlet and the second inlet respectively.

[0013] Optionally, the liquid replenishing channel is arranged in the hydraulic block body and includes a first liquid replenishing channel and a second liquid replenishing channel. The inlet ends of the first liquid replenishing channel and the second liquid replenishing channel communicate with the liquid storage tank respectively. One of the outlets of the first liquid replenishing channel and the second liquid replenishing channel communicates with the first inlet, and the other communicates with the second inlet. A fifth installation groove for installing a control valve is arranged on the first liquid replenishing channel, and a sixth installation groove for installing a control valve is arranged on the second liquid replenishing channel.

[0014] Optionally, a part of the first liquid replenishing channel and the second liquid replenishing channel close to the liquid storage assembly overlaps to form a common liquid replenishing channel. One of the part of the first liquid replenishing channel far from the common liquid replenishing channel and the part of the second liquid replenishing channel far from the common liquid replenishing channel overlaps with the first pressure relief channel branch, and the other overlaps with the second pressure relief channel branch. The third installation groove coincides with the fifth installation groove, and the fourth installation groove coincides with the sixth installation groove.

[0015] Optionally, a seventh installation groove for installing a control valve is arranged on the common liquid replenishing channel.

[0016] Optionally, the hydraulic block further includes a pressure maintaining channel, the pressure maintaining channel communicates with the first channel and the second channel respectively, and a fifth installation hole for installing a control valve is arranged on the pressure maintaining channel.

[0017] Optionally, a sixth installation hole for installing a pressure sensor for monitoring the pressure in the pressure building channel is further arranged on the hydraulic block body.

[0018] The second aspect of the present disclosure provides a hydraulic assembly, including a motor pump, at least one control valve and the above-mentioned hydraulic block. The liquid outlet of the motor pump communicates with the inlet of the hydraulic block, and a plurality of the control valves are correspondingly installed on a plurality of installation structures on the hydraulic block body.

[0019] Optionally, the motor pump is configured as a bidirectional gear motor pump.

[0020] Optionally, the control valve includes a plurality of solenoid valves and a plurality of check valves. The solenoid valves include a first solenoid valve installed in the first mounting hole on the hydraulic block body, a second solenoid valve installed in the second mounting hole, a third solenoid valve installed in the third mounting hole, a fourth solenoid valve installed in the fourth mounting hole, and a fifth solenoid valve installed in the fifth mounting hole. The check valves are respectively installed as a first check valve in the first mounting groove on the hydraulic block body, a second check valve in the second mounting groove, a third check valve in the third mounting groove, and a fourth check valve in the fourth mounting groove. Among them, the first check valve and the second check valve convey unidirectionally towards the hydraulic braking subsystem, and the third check valve and the fourth check valve convey unidirectionally towards the motor pump.

[0021] A third aspect of the present disclosure provides a hydraulic suspension braking system for a vehicle, which includes a controller and a hydraulic suspension braking subsystem corresponding to each wheel of the vehicle. Each hydraulic suspension braking subsystem includes a hydraulic suspension subsystem, a hydraulic braking subsystem, and the above-mentioned hydraulic component. The controller controls the motor pump and a plurality of control valves arranged on the hydraulic block body to be connected to the hydraulic suspension subsystem and the hydraulic suspension subsystem in a switchable manner, so that the motor pump can transport hydraulic oil through the hydraulic component to the hydraulic suspension subsystem to adjust the suspension state of the wheel, and transport it to the hydraulic braking subsystem to adjust the braking state of the wheel.

[0022] Preferably, the hydraulic suspension subsystem includes a shock absorber, and the suspension oil inlet chamber and the suspension oil outlet chamber of the shock absorber are respectively connected to the first outlet and the second outlet in the first outlet of the hydraulic block body. The hydraulic braking subsystem includes a brake cylinder, and the oil inlet of the brake cylinder is respectively connected to the third outlet and the fourth outlet in the second outlet.

[0023] Preferably, the hydraulic suspension subsystem further includes two flow valves, one of which is arranged between the suspension oil inlet chamber and the first outlet in the first outlet, and the other is arranged between the suspension oil outlet chamber and the second outlet in the first outlet.

[0024] A fourth aspect of the present disclosure provides a vehicle including the above-mentioned hydraulic suspension braking system.

[0025] Through the above technical solution, an inlet, a first outlet, a second outlet, and a communication channel are integrally arranged on the hydraulic block body. That is, the inlet is communicated with the liquid outlet of the motor pump, so that the high-pressure hydraulic oil generated by the motor pump can be introduced into the hydraulic block. The inlet is communicated with the first outlet and the second outlet respectively through the communication channel arranged in the hydraulic block. In this way, the hydraulic oil can be selectively drained to the hydraulic suspension subsystem to adjust the suspension state of the vehicle and drained to the hydraulic braking subsystem to brake the vehicle through the inlet of the hydraulic block body, thereby simplifying the layout structure of the hydraulic pipelines and valve bodies in the hydraulic suspension system and the hydraulic braking system in the vehicle chassis and improving the integration degree of the vehicle chassis.

[0026] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0028] Figure 1 is a schematic structural diagram of the hydraulic block from the first angle provided in the exemplary embodiment of the present disclosure;

[0029] Figure 2 is a schematic structural diagram of the hydraulic block from the second angle provided in the exemplary embodiment of the present disclosure;

[0030] Figure 3 is a schematic structural diagram of the internal suspension control communication channel of the hydraulic block provided in the exemplary embodiment of the present disclosure;

[0031] Figure 4 is a schematic structural diagram of a kind of internal braking control communication channel of the hydraulic block provided in the exemplary embodiment of the present disclosure;

[0032] Figure 5 is a schematic structural diagram of another internal braking control communication channel of the hydraulic block provided in the exemplary embodiment of the present disclosure;

[0033] Figure 6 is a schematic diagram of the hydraulic component provided in the exemplary embodiment of the present disclosure;

[0034] Figure 7 is a schematic flow diagram of the hydraulic suspension braking subsystem provided in the exemplary embodiment of the present disclosure;

[0035] Figure 8 is a schematic flow diagram of the hydraulic suspension braking system provided in the exemplary embodiment of the present disclosure.

[0036] DESCRIPTION OF THE REFERENCE NUMERALS

[0037] 1 - Controller; 2 - Motor pump; 21 - Motor; 22 - Bi-directional gear pump; 3 - Hydraulic suspension subsystem; 31 - Shock absorber; 32 - Suspension inlet chamber; 33 - Suspension outlet chamber; 34 - Flow valve; 35 - Hydraulic accumulator; 4 - Hydraulic braking subsystem; 41 - Brake cylinder; 42 - Pressure sensor; 51 - First solenoid valve; 52 - Second solenoid valve; 53 - Third solenoid valve; 54 - Fourth solenoid valve; 55 - Fifth solenoid valve; 61 - First check valve; 62 - Second check valve; 63 - Third check valve; 64 - Fourth check valve; 100 - Hydraulic block body; 101 - First inlet; 102 - Second inlet; 103 - First outlet; 104 - Second outlet; 105 - Third outlet; 106 - First channel; 106A - First branch of the first channel; 106B - Second branch of the first channel; 106C - Third branch of the first channel; 107 - Second channel; 107A - First branch of the second channel; 107B - Second branch of the second channel; 108 - Third channel; 109 - Fourth channel; 110 - First mounting hole; 111 - Second mounting hole; 112 - First mounting groove; 113 - Second mounting groove; 114 - Pressure building channel; 115 - Third mounting hole; 116 - Pressure relief channel; 117 - Fourth mounting hole; 118 - Common pressure relief channel; 119 - First branch of the pressure relief channel; 120 - Second branch of the pressure relief channel; 121 - Third mounting groove; 122 - Fourth mounting groove; 123 - Liquid storage tank; 124 - First liquid replenishment channel; 125 - Second liquid replenishment channel; 126 - Common liquid replenishment channel; 127 - Pressure holding channel; 128 - Fifth mounting hole; 129 - Sixth mounting hole; 130 - Connecting hole; 1000 - Hydraulic component; 2000 - Hydraulic suspension braking subsystem. Detailed implementation manners

[0038] The following will describe the detailed implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the detailed implementation manners described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0039] The terms "first", "second", etc. used in the present disclosure are used to distinguish one element from another element, and do not have sequentiality and importance. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0040] As Figures 1 - 8As shown in the figure, on the one hand, the present disclosure provides a hydraulic block for a vehicle wheel, including: a hydraulic block body 100, the hydraulic block body 100 having: an inlet, a first outlet, a second outlet, and a communication channel, wherein the inlet is used to communicate with the liquid outlet of the motor pump 2, the first outlet is used to communicate with the liquid inlet of the hydraulic suspension subsystem 3 of the corresponding vehicle wheel, and the second outlet is used to communicate with the liquid inlet of the hydraulic braking subsystem 4 of the corresponding vehicle wheel; the communication channels are respectively used to communicate the inlet with the first outlet and the inlet with the second outlet.

[0041] Through the above technical solution, the inlet, the first outlet, the second outlet, and the communication channel are integrally arranged on the hydraulic block body 100, that is, the inlet communicates with the liquid outlet of the motor pump 2, so that the high-pressure hydraulic oil generated by the motor pump 2 can be introduced into the hydraulic block. The communication channels provided in the hydraulic block communicate the inlet with the first outlet and the second outlet respectively. In this way, the hydraulic oil can be selectively drained from the inlet of the hydraulic block body 100 to the hydraulic suspension subsystem 3 to adjust the suspension state of the vehicle and to the hydraulic braking subsystem 4 to brake the vehicle, thereby simplifying the layout structure of the hydraulic pipelines and valve bodies in the hydraulic suspension system and the hydraulic braking system in the vehicle chassis and improving the integration degree of the vehicle chassis.

[0042] It should be noted that the hydraulic block mentioned in the present disclosure is taken as an example of being used in the vehicle chassis. The hydraulic system parts in the hydraulic suspension system and the hydraulic braking system on the vehicle chassis are integrally arranged through the hydraulic block to form the hydraulic suspension braking system of the vehicle, thereby streamlining the structures of the vehicle hydraulic suspension system and the hydraulic braking system and facilitating the adjustment of the vehicle suspension and braking. For example, there are four vehicle wheels, and the hydraulic suspension braking system in the vehicle can be provided with corresponding hydraulic suspension braking subsystems 2000, hydraulic blocks, and motor pumps 2 for each wheel. The hydraulic suspension braking subsystem 2000 includes a hydraulic suspension subsystem 3 and a hydraulic braking subsystem 4. The motor pump 2 can be reversed, pressurize the hydraulic oil, and drain the high-pressure hydraulic oil to the corresponding hydraulic suspension subsystem 3 and hydraulic braking subsystem 4 through the hydraulic block through two outlets respectively, so that the states of the suspension and braking corresponding to each wheel can be adjusted according to the road conditions and the driving parameters of the vehicle.

[0043] In order to facilitate improving the integration degree of the hydraulic block, in some implementable ways, the hydraulic block body 100 further has an installation structure for installing control valves, so that a plurality of scattered control valves are integrated on the hydraulic block through the installation structure, so that the hydraulic oil can be selectively drained from the inlet of the hydraulic block body 100 to the hydraulic suspension subsystem 3 to adjust the suspension state of the vehicle and to the hydraulic braking subsystem 4 to brake the vehicle, thereby simplifying the layout structure of the hydraulic pipelines and valve bodies in the hydraulic suspension system and the hydraulic braking system in the vehicle chassis and improving the integration degree of the vehicle chassis.

[0044] In some embodiments, to adapt to different control valve models, the mounting structure can be configured as a mounting hole that communicates with the communication channel and extends to the surface of the hydraulic block body 100; and / or the mounting structure can also be configured as a mounting groove formed in the communication channel.

[0045] To facilitate improving the integration of the hydraulic block, in some feasible embodiments, the inlets in the hydraulic block body 100 can include a first inlet 101 communicating with the first liquid outlet of the motor pump 2 and a second inlet 102 for communicating with the second liquid outlet of the motor pump 2. The first outlet can include a first outlet 103 communicating with the first liquid inlet of the hydraulic suspension subsystem 3 and a second outlet 104 communicating with the second liquid inlet of the hydraulic suspension subsystem 3. The second outlet can include a third outlet 105 communicating with the liquid inlet of the hydraulic braking subsystem 4. The multiple communication channels can include a first channel 106 connecting the first inlet 101 and the first outlet 103, a second channel 107 connecting the second inlet 102 and the second outlet 104, a third channel 108 connecting the first inlet 101 and the third outlet 105, and a fourth channel 109 connecting the second inlet 102 and the third outlet 105. The multiple mounting structures include a first mounting hole 110 provided on the first channel 106, a second mounting hole 111 provided on the second channel 107, a first mounting groove 112 provided on the third channel 108, and a second mounting groove 113 provided on the fourth channel 109. Control valves are installed in the first mounting hole 110, the second mounting hole 111, the first mounting groove 112, and the second mounting groove 113. In this way, the motor pump 2 can pass the high-pressure hydraulic oil through the first inlet 101, the first channel 106, and enter the hydraulic suspension subsystem 3 from the first outlet 103 through the on-off of the control valve corresponding to the first mounting hole 110 to adjust the suspension state of the vehicle. At the same time, the motor pump 2 can also pass the high-pressure hydraulic oil through the first inlet 101, the third channel 108, and enter the hydraulic braking subsystem 4 from the third outlet 105 through the on-off of the control valve on the first mounting groove 112 to brake the vehicle. Of course, the motor pump 2 can also pass the high-pressure hydraulic oil through the second inlet 102, the second channel 107, and enter the hydraulic suspension subsystem 3 from the second outlet 104 through the on-off of the control valve corresponding to the second mounting hole 111 to adjust the suspension state of the vehicle. The motor pump 2 can pass the high-pressure hydraulic oil through the second inlet 102, the fourth channel 109, and enter the hydraulic braking subsystem 4 from the third outlet 105 through the on-off of the control valve on the second mounting groove 113 to brake the vehicle.

[0046] It can be understood that the high-pressure hydraulic oil generated by the motor pump 2 above can enter the hydraulic suspension subsystem 3 and the hydraulic braking subsystem 4 separately through the communication channels in the hydraulic block, or can enter the hydraulic suspension subsystem 3 and the hydraulic braking subsystem 4 synchronously.

[0047] To facilitate the pressurization or depressurization of the hydraulic oil in the hydraulic braking subsystem 4 through the hydraulic block, in some implementable ways, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 shown, the portions of the third channel 108 and the fourth channel 109 close to the third outlet 105 can overlap to form a pressurization channel 114. The liquid outlet of the pressurization channel 114 is communicated with the liquid inlet of the hydraulic braking subsystem 4, so as to simplify the structure of the communication channels in the hydraulic block body 100 and improve the utilization rate of the communication channels. To facilitate the control of the on-off of the pressurization channel 114, a third mounting hole 115 for installing a control valve is further provided on the pressurization channel 114. The third mounting hole 115 is arranged downstream of the first mounting groove 112 and the second mounting groove 113. Here, the upstream and downstream are defined as the end close to the motor pump 2 being the upstream and the end far from the motor pump 2 being the downstream. Thus, when braking is required, the motor pump 2 can pass the high-pressure hydraulic oil through the third channel 108 and open the control valve on the first mounting groove 112 on the third channel 108 to make the high-pressure hydraulic oil enter the pressurization channel 114 and drain the high-pressure hydraulic oil to the hydraulic braking subsystem 4 through opening the control valve on the third mounting hole 115 located downstream of the first mounting groove 112 to brake the vehicle. Of course, the high-pressure hydraulic oil of the motor pump 2 can also pass through the fourth channel 109 and open the control valve on the second mounting groove 113 on the fourth channel 109 to make the high-pressure hydraulic oil enter the pressurization channel 114 and drain the high-pressure hydraulic oil to the hydraulic braking subsystem 4 through opening the control valve on the third mounting hole 115 located downstream of the second mounting groove 113 to brake the vehicle.

[0048] In addition, to facilitate the release of the vehicle's braking, in some implementable ways, the hydraulic block further includes a pressure relief passage 116. A fourth mounting hole 117 for mounting a control valve is provided on the pressure relief passage 116. One end of the pressure relief passage 116 communicates with the liquid inlet of the hydraulic braking subsystem 4, and the other end communicates with the first inlet 101 and the second inlet 102 respectively. A control valve is provided between the fourth mounting hole 117 and the first inlet 101, and a control valve is also provided between the fourth mounting hole 117 and the second inlet 102. In this way, when high-pressure hydraulic oil enters the hydraulic braking subsystem 4 through the third passage 108, the other end of the pressure relief passage 116 controls to close the control valve between the sixth mounting hole 117 and the first inlet 101 and open the control valve between the sixth mounting hole 117 and the second inlet 102, so that the high-pressure hydraulic oil is discharged from the liquid inlet of the hydraulic braking subsystem 4 and the high-pressure hydraulic oil is diverted through the pressure relief passage 116 to the second inlet 102 and returned to the oil sump of the motor pump 2. Of course, when high-pressure hydraulic oil enters the hydraulic braking subsystem 4 through the fourth passage 109, the other end of the pressure relief passage 116 controls to open the control valve between the fourth mounting hole 117 and the first inlet 101 and close the control valve between the fourth mounting hole 117 and the second inlet 102, so that the high-pressure hydraulic oil is discharged from the oil inlet of the hydraulic braking subsystem 4 and the high-pressure hydraulic oil is diverted through the pressure relief passage 116 to the first inlet 101 and returned to the oil sump of the motor pump 2.

[0049] To further integrate the communication channels in the hydraulic block, in some implementable ways, the pressure relief passage 116 includes a common pressure relief passage 118, a first pressure relief passage branch 119, and a second pressure relief passage branch 120. The fourth mounting hole 117 is provided in the common pressure relief passage 118. One end of the common pressure relief passage 118 communicates with the liquid inlet of the hydraulic braking subsystem 4, and the other end communicates with the first pressure relief passage branch 119 and the second pressure relief passage branch 120 respectively. One of the first pressure relief passage branch 119 and the second pressure relief passage branch 120 communicates with the first inlet 101, and the other communicates with the second inlet 102. A third mounting groove 121 for mounting a control valve is provided on the first pressure relief passage branch 119, and a fourth mounting groove 122 for mounting a control valve is provided on the second pressure relief passage branch 120. In this way, the high-pressure hydraulic oil can be returned from the first inlet 101 to the oil sump of the motor pump 2 through the common pressure relief passage 118, the first pressure relief passage branch 119, and by controlling the control valve on the fourth mounting hole 117 and the control valve on the first pressure relief passage branch 119 to open and close the control valve of the second pressure relief passage branch 120. At the same time, the high-pressure hydraulic oil can also be returned from the second inlet 102 to the oil sump of the motor pump 2 through the common pressure relief passage 118 and the second pressure relief passage branch 120.

[0050] In order to ensure that there is sufficient hydraulic oil in the motor pump 2 entering the hydraulic braking subsystem during the pressure - building process, in some implementable ways, please refer to Figure 5 , the hydraulic block further includes a liquid storage assembly. The liquid storage assembly includes a liquid storage tank 123 and a liquid replenishment channel communicating with the liquid storage tank 123. The liquid storage tank 123 is arranged in the hydraulic block body 100. The liquid inlet of the liquid replenishment channel communicates with the liquid storage tank 123, and the liquid outlets of the liquid replenishment channel communicate with the first inlet 101 and the second inlet 102 respectively. Thus, when the high - pressure hydraulic oil in the motor pump 2 enters the hydraulic braking subsystem 4 from the first inlet 101, and when the oil tank of the motor pump 2 sends out high - pressure oil and is in an oil - deficient state, the hydraulic oil in the liquid storage tank 123 can flow into the oil tank of the motor pump 2 through the liquid replenishment channel, so that the hydraulic braking subsystem 4 has sufficient hydraulic oil to brake the vehicle; of course, when the high - pressure hydraulic oil in the motor pump 2 enters the hydraulic braking subsystem 4 from the second inlet 102, and when the oil tank of the motor pump 2 sends out high - pressure oil and is in an oil - deficient state, the hydraulic oil in the liquid storage tank 123 can flow into the oil tank of the motor pump 2 through the liquid replenishment channel, so that the hydraulic braking subsystem 4 has sufficient hydraulic oil to brake the vehicle.

[0051] It should be noted that the structure in which the above - mentioned liquid storage tank 123 is arranged in the hydraulic block body 100 is schematic. In other embodiments, the liquid storage tank 123 can also be arranged at an interval from the hydraulic block body 100. The liquid inlet of the liquid replenishment channel communicates with the liquid storage tank, and the liquid outlets of the liquid replenishment channel communicate with the first inlet 101 and the second inlet 102 respectively.

[0052] In order to further improve the integration degree of the hydraulic block and facilitate the control of the hydraulic oil flowing into the hydraulic braking subsystem 4, in some implementable ways, the liquid replenishing channels are arranged in the hydraulic block body 100 and include a first liquid replenishing channel 124 and a second liquid replenishing channel 125. The inlet ends of the first liquid replenishing channel 124 and the second liquid replenishing channel 125 are respectively communicated with the liquid storage tank 123. One of the outlets of the first liquid replenishing channel 124 and the second liquid replenishing channel 125 is communicated with the first inlet 101, and the other is communicated with the second inlet 102. A fifth installation groove for installing a control valve is arranged on the first liquid replenishing channel 124, and a sixth installation groove for installing a control valve is arranged on the second liquid replenishing channel 125. Thus, the liquid replenishing channels can be integrally arranged with the hydraulic block body 100. When the high-pressure hydraulic oil in the motor pump 2 enters the hydraulic braking subsystem 4 from the first inlet 101 and the oil tank of the motor pump 2 sends out high-pressure oil in a state of oil shortage, the control valve on the first liquid replenishing channel 124 can be opened and the control valve on the second liquid replenishing channel 125 can be closed so that the hydraulic oil in the liquid storage tank 123 flows into the oil tank of the motor pump 2 through the first liquid replenishing channel 124, thereby enabling the hydraulic braking subsystem 4 to have enough hydraulic oil to brake the vehicle. Of course, when the high-pressure hydraulic oil in the motor pump 2 enters the hydraulic braking subsystem 4 from the second inlet 102 and the oil tank of the motor pump 2 is short of oil, the control valve on the first liquid replenishing channel 124 can be closed and the control valve on the second liquid replenishing channel 125 can be opened so that the hydraulic oil in the liquid storage tank 123 flows into the oil tank of the motor pump 2 through the second liquid replenishing channel 125, thereby enabling the hydraulic braking subsystem 4 to have enough hydraulic oil to brake the vehicle.

[0053] In order to further improve the integration degree of the communication channels in the hydraulic block, in some implementable ways, such as Figure 4 , Figure 5 and Figure 7As shown, the part of the first liquid replenishing channel 124 and the second liquid replenishing channel 125 close to the liquid storage tank 123 overlaps to form a common liquid replenishing channel 126. The common liquid replenishing channel 126 can simplify the number of channels in the hydraulic block and improve the utilization rate of the connecting channels. One of the part of the first liquid replenishing channel 124 far from the common liquid replenishing channel 126 and the part of the second liquid replenishing channel 125 far from the common liquid replenishing channel 126 overlaps with the first pressure relief channel branch 119, and the other overlaps with the second pressure relief channel branch 120. The third installation groove 121 coincides with the fifth installation groove, and the fourth installation groove 122 coincides with the sixth installation groove. For example, the part of the first liquid replenishing channel 124 far from the common liquid replenishing channel 126 overlaps with the first pressure relief channel branch 119, and the part of the second liquid replenishing channel 125 far from the common liquid replenishing channel 126 overlaps with the second pressure relief channel branch 120. In this way, both the connecting channels and the corresponding control valves can be saved, so that the integration degree of the hydraulic block is higher. When pressure relief is required, the high-pressure hydraulic oil can be returned from the first inlet 101 to the oil tank of the motor pump 2 through the common pressure relief channel 118 and the first pressure relief channel branch 119, and the high-pressure hydraulic oil can be returned from the second inlet 102 to the oil tank of the motor pump 2 through the common pressure relief channel 118 and the second pressure relief channel branch 120. The high-pressure hydraulic oil can also flow into the liquid storage tank 123 through the common pressure relief channel 118 and the common liquid replenishing channel 126 for storage. In addition, when liquid replenishment is required, the hydraulic oil can be drained from the liquid storage tank 123 to the oil tank of the motor pump 2 through the common liquid replenishing channel 126 and the first pressure relief channel branch 119, or the hydraulic oil can be drained from the liquid storage tank 123 to the oil tank of the motor pump 2 through the common liquid replenishing channel 126 and the second pressure relief channel branch 120, so as to replenish the oil tank of the motor pump 2.

[0054] In addition, in order to facilitate the control of the on-off of the common liquid replenishing channel 126, in some implementable ways, a seventh installation groove for installing a control valve is provided on the common liquid replenishing channel 126.

[0055] In some implementable ways, such as Figure 3 and Figure 7As shown, to facilitate pressure holding of the hydraulic suspension subsystem 3, the hydraulic block further includes a pressure holding passage 127. The pressure holding passage 127 is respectively communicated with the first passage 106 and the second passage 107. A fifth mounting hole 128 for installing a control valve is provided on the pressure holding passage 127. Among them, the fifth mounting hole 128 can be arranged downstream of the first mounting hole 110 and the second mounting hole 111. Here, the upstream refers to the end close to the motor pump 2 as the upstream and the end far from the motor pump 2 as the downstream. For example, when the high-pressure hydraulic oil in the motor pump 2 is drained from the first passage 106 to the hydraulic suspension subsystem 3, the vehicle suspension is adjusted to a preset position. At this time, the control valve of the first mounting hole 110 on the first passage 106 and the control valve of the second mounting hole 111 on the second passage 107 can be closed and the control valve of the fifth mounting hole 128 on the pressure holding passage 127 can be opened, so as to decouple the hydraulic suspension subsystem 3 from the motor pump 2, and the hydraulic suspension subsystem 3 realizes pressure holding. To facilitate the machining of the second passage 107, in some implementable ways, the second passage 107 can include a plurality of branches connected end to end, such as Figure 3 As shown, the second passage 107 can include a first branch 107A of the second passage and a second branch 107B of the second passage, where the first branch 107A and the second branch 107B of the second passage are communicated. Similarly, the first passage 106 can also be composed of a first branch 106A of the first passage, a second branch 106B of the first passage, and a third branch 106C of the first passage connected end to end. Of course, a plurality of plugs, such as steel balls, can also be provided to block each branch so that the hydraulic oil can flow along a preset route.

[0056] To improve the integration of the hydraulic block, in some implementable ways, a sixth mounting hole 129 for installing a sensor for monitoring the pressure of the pressure building passage 114 is further provided on the hydraulic block body 100. The pressure in the pressure building passage 114 is monitored by the pressure sensor to obtain the braking hydraulic pressure in the hydraulic braking subsystem, so as to facilitate the control valve of the third mounting hole 115 on the pressure building passage 114 to perform braking pressure holding on the hydraulic braking subsystem 4.

[0057] To further improve the integration of the hydraulic block, in some implementable ways, a fifth mounting hole (not shown in the figure) for installing a circuit board of the control valve and the sensor is further provided on the hydraulic block body 100. The fifth mounting hole can be configured as a threaded hole. In this way, the circuit board of the control valve and the sensor is fixed on the hydraulic block through fasteners, so as to further simplify the layout in the hydraulic oil circuit and reduce the weight of the vehicle chassis.

[0058] It can be understood that a plurality of connection holes 130 for installing control valves are provided near the corresponding first mounting hole 110, second mounting hole 111, third mounting hole 115, and fourth mounting hole 117 on the hydraulic block body 100. In this way, the control valves can be integrally fixed on the hydraulic block body 100.

[0059] A second aspect of the present disclosure provides a hydraulic assembly for a vehicle, including a motor pump 2, a plurality of control valves, and the above-mentioned hydraulic block. The liquid outlet of the motor pump 2 is communicated with the inlet 101 of the hydraulic block, and the plurality of control valves are correspondingly installed at a plurality of mounting positions on the hydraulic block body 100. For example, the hydraulic assembly is used in the hydraulic suspension braking system of a vehicle. The hydraulic suspension braking system includes a hydraulic suspension subsystem 3 and a hydraulic braking subsystem 4. The motor pump 2 has two outlets. By the forward and reverse rotation of the motor pump 2, the flow direction of the high-pressure hydraulic oil is changed. The high-pressure hydraulic oil is selectively drained to the hydraulic suspension subsystem 3 to adjust the suspension state of the vehicle and drained to the hydraulic braking subsystem 4 to brake the vehicle through the on-off of the control valve. In this way, by arranging the hydraulic assembly on the vehicle, the layout structure of the hydraulic pipelines and valve bodies in the hydraulic suspension system and the hydraulic braking system in the vehicle chassis is simplified, the integration degree of the vehicle chassis is improved, and the weight of the chassis is reduced. It can be understood that the above-mentioned hydraulic assembly includes all the beneficial effects of the hydraulic block and will not be elaborated here.

[0060] In some implementable ways, the motor pump 2 is configured as a bidirectional gear motor pump. The bidirectional gear motor pump may include a forward and reverse motor and a bidirectional gear pump. By the rotation of the forward and reverse motor, the gears of the bidirectional gear pump are driven to rotate forward and backward to send out the high-pressure hydraulic oil from the first liquid outlet and the second liquid outlet. In addition, in order to further improve the integration degree of the hydraulic assembly, a plurality of threaded holes are provided on the housing of the motor pump 2, and a plurality of mating holes are also provided on the hydraulic block. Fasteners pass through the threaded holes and the mating holes to fixedly and sealingly connect the hydraulic block to the opening of the housing, thereby integrally arranging the hydraulic block and the motor pump 2, streamlining the structure, and further improving the integration degree of the hydraulic assembly.

[0061] Of course, the above structure of integrally arranging the hydraulic block and the motor pump 2 is illustrative. In other embodiments, the hydraulic block and the motor pump 2 can also be separated according to the specific vehicle model. For example, in a four-wheel vehicle, the two hydraulic blocks corresponding to the two front wheels can be arranged between the two longitudinal beams of the front subframe, and the two hydraulic blocks corresponding to the two rear wheels are arranged on the tail beam. The motor pump 2 is communicated with the hydraulic block through an external oil pipe, and the hydraulic block is communicated with the corresponding hydraulic suspension subsystem 3 and hydraulic braking subsystem 4 through an external oil pipe.

[0062] To facilitate the adjustment of the selective entry of high-pressure hydraulic oil into the hydraulic suspension subsystem 3 and the hydraulic braking subsystem 4, in some feasible embodiments, the control valve includes a plurality of solenoid valves and a plurality of check valves. The solenoid valves include a first solenoid valve 51 installed in the first mounting hole 110 of the hydraulic block body 100, a second solenoid valve 52 installed in the second mounting hole 111, a third solenoid valve 53 installed in the third mounting hole 115, a fourth solenoid valve 54 installed in the fourth mounting hole 117, and a fifth solenoid valve 55 installed in the fifth mounting hole 128. Thus, the setting of the first solenoid valve 51 can facilitate the control of the on / off of the first channel 106, the setting of the second solenoid valve 52 can facilitate the on / off of the second channel 107, the setting of the third solenoid valve 53 can facilitate the control of the on / off of the pressure building channel 114, the setting of the fourth solenoid valve 54 can facilitate the control of the on / off of the pressure relief channel 116, and the setting of the fifth solenoid valve 55 can facilitate the control of the on / off of the pressure holding channel 127. The check valves are respectively installed with a first check valve 61 in the first mounting groove 112 of the hydraulic block body 100, a second check valve 62 in the second mounting groove 113, a third check valve 63 in the third mounting groove 121, and a fourth check valve 64 in the fourth mounting groove 122. Among them, the first check valve 61 and the second check valve 62 convey unidirectionally towards the hydraulic braking subsystem 4, and the third check valve 63 and the fourth check valve 64 convey unidirectionally towards the motor pump 2. Through the setting of the first check valve 61, the second check valve 62, the third check valve 63, and the fourth check valve 64, it can prevent high-pressure hydraulic oil from entering the oil tank of the motor pump 2, so that when pressure is relieved, the high-pressure hydraulic oil can smoothly return to the oil tank of the motor pump 2 through the pressure difference.

[0063] The third aspect of the present disclosure provides a hydraulic suspension braking system, such as Figure 7 and Figure 8As shown, it is used for a vehicle, including a controller 1 and hydraulic suspension braking subsystems 2000 corresponding to the vehicle wheels one by one. Each hydraulic suspension braking subsystem 2000 includes a hydraulic suspension subsystem 3, a hydraulic braking subsystem 4, and the above-mentioned hydraulic component 1000. The controller 1 controls the motor pump 2 and a plurality of control valves arranged on the hydraulic block body 100 to be connectable and disconnectable with the hydraulic suspension subsystem 3 and the hydraulic suspension subsystem 3, so that the motor pump 2 can deliver hydraulic oil to the hydraulic suspension subsystem 3 through the hydraulic component to adjust the suspension state of the wheel, and deliver it to the hydraulic braking subsystem 4 to adjust the braking state of the wheel. In this way, by arranging corresponding hydraulic suspension braking subsystems 2000 on each wheel of the vehicle, the motor pump 2 in the hydraulic suspension braking subsystem 2000 distributes the hydraulic oil to the hydraulic suspension subsystem 3 and the hydraulic braking subsystem 4 through the hydraulic block in the hydraulic component 1000. For example, the suspension braking system of the present disclosure is used for a four-wheel vehicle, and the motor pump 2 can pressurize the hydraulic oil and drain the high-pressure hydraulic oil to the corresponding hydraulic suspension subsystem 3 and hydraulic braking subsystem 4 through two outlets respectively through the hydraulic block, so as to adjust the suspension and braking states corresponding to each wheel according to the road conditions and the driving parameters of the vehicle. It can be understood that the above-mentioned hydraulic suspension braking system includes all the beneficial effects of the above-mentioned hydraulic component 1000, which will not be elaborated here.

[0064] Among them, the controller 1 can be an active suspension ECU controller, a PLC controller, a single-chip microcomputer or the vehicle control system. The controller 1 at least has the functions of receiving and processing the sensor signals of the hydraulic braking subsystem 4 and the hydraulic suspension subsystem 3, and controlling the motor pump 2 and all control valves to work in combination with vehicle information. The controller can be signal-connected to the hydraulic braking subsystem 4, the hydraulic suspension subsystem 3 and the control valve in a wired or wireless manner. The wireless manner can include WIFI, Bluetooth, and 4G / 5G, etc. For example, the controller 1 can be an active suspension ECU controller. In order to facilitate obtaining the vehicle parameters and adjusting the suspension and braking of the wheels according to the vehicle parameters, the vehicle parameters are measured by a plurality of sensors on the vehicle. For example, the sensors can include a vehicle speed sensor. According to the signal of the vehicle speed sensor and the current rotation mode of the motor pump 2, the output power of the motor is determined, so as to control the control valve on the corresponding hydraulic block, thereby completing real-time control. Compared with the traditional mechanical steering device, it has a simple structure and a small space occupation ratio.

[0065] For the convenience of adjusting the hydraulic suspension subsystem, in some feasible embodiments, the hydraulic suspension subsystem 3 includes a shock absorber 31. The suspension oil inlet chamber 32 and the suspension oil outlet chamber 33 of the shock absorber 31 are respectively connected to the first outlet 103 and the second outlet 104 in the first outlet of the hydraulic block body 100. Thus, when the motor pump 2 introduces high-pressure hydraulic oil into the suspension oil inlet chamber 32 from the first outlet 103, the hydraulic rod extends to raise the suspension. Conversely, when the motor pump 2 introduces high-pressure hydraulic oil into the suspension oil outlet chamber 33 from the second outlet 104, the suspension is lowered.

[0066] For the convenience of controlling the damping during the recovery and compression of the shock absorber, in some feasible embodiments, the hydraulic suspension subsystem 3 further includes two flow valves 34. One flow valve 34 is disposed between the suspension oil inlet chamber 32 and the first outlet 103 in the first outlet, and the other flow valve 34 is disposed between the suspension oil outlet chamber 33 and the second outlet 104 in the first outlet. Thus, by arranging the two flow valves 34, the flow rate of the hydraulic oil in the first channel 106 and the second channel 107 can be controlled, so that the suspension of the hydraulic suspension subsystem 3 can be lifted and lowered at a preset speed.

[0067] To further improve the integration of the hydraulic suspension subsystem, in some feasible embodiments, the two flow valves 34 are integrally formed with the shock absorber 31.

[0068] For the convenience of adjusting the hydraulic braking subsystem, in some feasible embodiments, the hydraulic braking subsystem 4 includes a brake cylinder 41. The oil inlet of the brake cylinder 41 is connected to the third outlet 105 in the second outlet. Thus, the motor pump 2 injects high-pressure hydraulic oil into the hydraulic block through the first inlet 101 on the hydraulic block and enters the brake cylinder 41 through the third outlet 105 on the hydraulic block to enable the brake cylinder 41 to perform hydraulic braking on the vehicle wheels. Of course, the motor pump 2 can also inject high-pressure hydraulic oil into the hydraulic block through the second inlet 102 on the hydraulic block and enter the brake cylinder 41 through the third outlet 105 on the hydraulic block to enable the brake cylinder 41 to perform hydraulic braking on the vehicle wheels.

[0069] It should be noted that taking the motor pump 2 as a two-way pump as an example, referring to Figure 6 and Figure 7 , high-pressure hydraulic oil can be output on both the left and right sides of the motor pump 2. The left and right sides can respectively refer to the left and right sides of the paper surface in Figure 7 . Therefore, assuming that when the motor rotates forward, the left side of the motor pump 2 outputs high-pressure hydraulic oil, and when the motor rotates in reverse, the right side of the motor pump 2 outputs high-pressure hydraulic oil. Further, the first inlet 101 of the hydraulic block body 100 can be communicated with the liquid outlet of the left motor pump 2, and the second inlet 102 can be communicated with the liquid outlet of the right motor pump 2.

[0070] When adjusting the wheel brake alone without adjusting the suspension, the controller 1 builds pressure for braking according to the operating parameters of the vehicle. The controller 1 controls the third solenoid valve 53 to open, checks that the fourth solenoid valve 54 is in the closed state, and the first solenoid valve 51 and the second solenoid valve 52 are in the closed state. The controller 1 controls the motor pump 2 to build pressure for the hydraulic braking subsystem 4. When the motor rotates forward, the left side of the motor pump 2 outputs high-pressure hydraulic oil. The high-pressure oil passes through part of the first one-way valve 61, the pressure-building channel 114, the third solenoid valve 53, and the external oil pipe in sequence and enters the brake cylinder 41, thereby realizing the pressure building of the hydraulic braking subsystem 4, so that the wheel stops rotating under the clamping of the brake cylinder 41. Similarly, when the motor rotates in reverse, the right side of the motor pump 2 outputs high-pressure hydraulic oil. The high-pressure hydraulic oil passes through the third one-way valve 63, the pressure-building channel 114, the third solenoid valve 53, and the external oil pipe in sequence and enters the brake cylinder 41, thereby realizing the pressure building of the hydraulic braking subsystem 4. Of course, during the pressure-building process, the hydraulic oil needs to be replenished into the oil tank of the motor pump 2. When the motor rotates forward, the hydraulic oil in the liquid storage tank 123 enters the oil tank of the motor pump 2 through the common liquid replenishing channel 126, the third one-way valve 63, and the external oil pipe. When the motor rotates in reverse, the hydraulic oil in the liquid storage tank 123 enters the oil tank of the motor pump 2 through the common liquid replenishing channel 126, the fourth one-way valve 64, and the external oil pipe.

[0071] When braking and maintaining pressure, the controller 1 controls the third solenoid valve 53 to close, checks that the fourth solenoid valve 54 is in the closed state. At this time, the motor pump 2 does not participate in the operation of the hydraulic braking subsystem 4, and the hydraulic oil is sealed in the third channel 108 and the external pipeline between the third solenoid valve 53 and the brake cylinder 41, thereby realizing braking and maintaining pressure. When braking and relieving pressure, the controller 1 controls the fourth solenoid valve 54 to open, checks that the third solenoid valve 53 is in the normally closed state. At this time, the motor pump 2 does not participate in the operation of the hydraulic braking subsystem 4. The high-pressure hydraulic oil in the brake cylinder 41 flows back to the liquid storage tank 123 through the external oil pipe, the pressure-relieving channel 116, the fourth solenoid valve 54, and the common liquid replenishing channel 126. Of course, when braking and relieving pressure, according to the forward and reverse rotation of the motor, the high-pressure hydraulic oil in the brake cylinder 41 can also flow back to the oil tank of the motor pump 2 through the external oil pipe, the pressure-relieving channel 116, the fourth solenoid valve 54, the first pressure-relieving channel branch 119, or the second pressure-relieving channel branch 120, thereby completing the pressure relief. It should be noted that the pressure sensor 42 arranged in the pressure-building channel 114 monitors the pressure of the hydraulic oil in the brake cylinder 41 in real time. During the braking and pressure-building process, when the controller 1 recognizes through the pressure sensor 42 that the hydraulic oil in the brake cylinder 41 reaches the target pressure, it controls the third solenoid valve 53 to close and starts braking and maintaining pressure.

[0072] When adjusting the wheel suspension alone without adjusting the brake, when the suspension of the corresponding wheel needs to be raised, the controller 1 checks that the first solenoid valve 51 and the second solenoid valve 52 are normally open, the fifth solenoid valve 55, the first check valve 61 and the second check valve 62 are normally closed, and controls the motor pump 2 to rotate forward. The left side of the motor pump 2 outputs high-pressure hydraulic oil, which enters the suspension oil inlet chamber 32 through the first channel 106, the first solenoid valve 51 and the external oil pipe. Since the motor rotates forward, the right side of the oil sump of the motor pump 2 becomes the low-pressure side. The hydraulic oil in the suspension oil outlet chamber 33 flows back to the right side of the oil sump of the motor pump 2 through the external oil pipe, the second solenoid valve 52 and the second channel 107. The hydraulic oil in the suspension oil inlet chamber 32 of the shock absorber 31 increases, and the hydraulic oil in the suspension oil outlet chamber 33 decreases. The push rod extends and the suspension rises. Similarly, when the suspension of the wheel needs to be lowered, the controller 1 checks that the first solenoid valve 51 and the second solenoid valve 52 are normally open, the fifth solenoid valve 55, the first check valve 61 and the second check valve 62 are normally closed, and controls the motor pump 2 to rotate in reverse. The right side of the motor pump 2 outputs high-pressure hydraulic oil, which enters the suspension oil outlet chamber 33 of the shock absorber 31 through the second channel 107, the second solenoid valve 52 and the external oil pipe. At the same time, since the motor pump 2 rotates in reverse, the left side of the oil sump becomes the low-pressure side. The suspension oil inlet chamber 32 enters the left side of the oil sump of the motor pump 2 through the external oil pipe, the first solenoid valve 51 and the first channel 106. The hydraulic oil in the suspension oil inlet chamber 32 of the shock absorber 31 decreases, and the hydraulic oil in the suspension oil outlet chamber 33 increases. The push rod contracts and the suspension lowers.

[0073] In addition, when adjusting the wheel suspension alone and the controller 1 detects that the hydraulic braking subsystem 4 needs to build pressure, the controller 1 controls the first solenoid valve 51 and the second solenoid valve 52 to be normally closed, and the fifth solenoid valve 55 to be normally open, so that the shock absorber 31 forms pressure holding with the suspension oil inlet chamber 32 and the suspension oil outlet chamber 33 through the pressure holding channel 127. When the controller 1 recognizes that the hydraulic braking subsystem 4 does not need to build pressure, the controller 1 controls the first solenoid valve 51 and the second solenoid valve 52 to be normally open, and the fifth solenoid valve 55 to be normally closed, and controls the motor pump 2 to reduce the rotation speed or stop running to achieve pressure holding of the hydraulic suspension subsystem 3.

[0074] When the suspension and braking of the wheel need to be adjusted simultaneously, that is, the motor pump 2 needs to build pressure for both the hydraulic braking subsystem 4 and the hydraulic suspension subsystem 3 at the same time. When the working pressure required by the hydraulic suspension subsystem 3 is greater than that of the hydraulic braking subsystem 4, the controller 1 closes the third solenoid valve 53 when the pressure sensor in the hydraulic braking subsystem 4 reaches the preset pressure, so as to decouple from the hydraulic suspension subsystem 3. The motor pump 2 continues to build pressure for the hydraulic suspension subsystem 3, and the pressure building refers to the above-mentioned working condition of adjusting the wheel suspension alone; when the working pressure required by the hydraulic braking subsystem 4 is greater than that of the hydraulic suspension subsystem 3, the controller 1 closes the first solenoid valve 51 and the second solenoid valve 52 when the hydraulic suspension subsystem 3 reaches the preset pressure, and at the same time opens the third solenoid valve 53, so that the hydraulic suspension subsystem 3 maintains pressure and decouples from the hydraulic braking subsystem 4, and the motor pump 2 continues to build pressure for the hydraulic braking subsystem 4.

[0075] The fourth aspect of the present disclosure provides a vehicle, including the above-mentioned hydraulic suspension braking system. For example, the vehicle has four wheels, and all four wheels can separately adjust the vehicle suspension and vehicle braking through the suspension braking subsystem. Thus, the motor pump 2 can pressurize and output the hydraulic oil in the hydraulic source and control the hydraulic suspension subsystem 3 through the hydraulic components to adjust the suspension of the corresponding wheel according to the preset position, and control the hydraulic braking subsystem 4 through the hydraulic components to brake the corresponding wheel, so as to improve the adaptability of the entire vehicle to the terrain and the stability and safety of vehicle driving. It should be noted that the above-mentioned vehicle includes all the beneficial effects of the above-mentioned suspension braking system, which will not be elaborated here. It can be understood that the above-mentioned vehicle can be a new energy vehicle, an electric vehicle or a hybrid vehicle, and the present disclosure does not make specific limitations.

[0076] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0077] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0078] In addition, any combination can be made between various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A hydraulic block for a vehicle, characterized in that, it includes: A hydraulic block body, the hydraulic block body having: An inlet for communicating with the liquid outlet of the motor pump; A first outlet for communicating with the hydraulic suspension subsystem of the corresponding vehicle wheel; A second outlet for communicating with the hydraulic braking subsystem of the corresponding vehicle wheel; and A communication channel for communicating the inlet with the first outlet and the inlet with the second outlet.

2. The hydraulic block according to claim 1, characterized in that, The hydraulic block body further has an installation structure for installing a control valve, so that the inlet of the hydraulic block body can be communicatively connected to the hydraulic suspension subsystem and the hydraulic braking subsystem in a switchable manner.

3. The hydraulic block according to claim 2, characterized in that, The installation structure is configured as an installation hole that communicates with the communication channel and extends to the surface of the hydraulic block body; and / or The installation structure is configured as an installation groove formed in the communication channel.

4. The hydraulic block according to claim 3, characterized in that, The inlet includes a first inlet for communicating with the first liquid outlet of the motor pump and a second inlet for communicating with the second liquid outlet of the motor pump, The first outlet includes a first outlet for communicating with the first liquid inlet of the hydraulic suspension subsystem and a second outlet for communicating with the second liquid inlet of the hydraulic suspension subsystem, The second outlet includes a third outlet for communicating with the liquid inlet of the hydraulic braking subsystem, and the plurality of communication channels include a first channel connecting the first inlet and the first outlet, a second channel connecting the second inlet and the second outlet, a third channel connecting the first inlet and the third outlet, and a fourth channel connecting the second inlet and the third outlet, The plurality of installation structures include a first installation hole provided on the first channel, a second installation hole provided on the second channel, a first installation groove provided on the third channel, and a second installation groove provided on the fourth channel. The first installation hole, the second installation hole, the first installation groove, and the second installation groove are all used for installing a control valve so that hydraulic oil enters the hydraulic suspension subsystem to adjust the suspension state of the vehicle and enters the hydraulic braking subsystem to brake the vehicle.

5. The hydraulic block according to claim 4, characterized in that, A part of the channels of the third channel and the fourth channel near the third outlet overlap to form a pressure building channel. The liquid outlet of the pressure building channel is communicated with the oil inlet of the hydraulic braking subsystem, and a third installation hole for installing a control valve is provided on the pressure building channel.

6. The hydraulic block according to claim 4 or 5, characterized in that, The hydraulic block further includes a pressure relief channel. A fourth installation hole for installing a control valve is provided on the pressure relief channel. One end of the pressure relief channel is communicated with the liquid inlet of the hydraulic braking subsystem, and the other end is respectively communicated with the first inlet and the second inlet.

7. The hydraulic block according to claim 6, characterized in that, The pressure relief passage includes a common pressure relief passage, a first pressure relief passage branch, and a second pressure relief passage branch. The fourth mounting hole is provided in the common pressure relief passage. One end of the common pressure relief passage is communicated with the liquid inlet of the hydraulic braking subsystem, and the other end is respectively communicated with the first pressure relief passage branch and the second pressure relief passage branch. One of the first pressure relief passage branch and the second pressure relief passage branch is communicated with the first inlet, and the other is communicated with the second inlet. A third mounting groove for installing a control valve is provided on the first pressure relief passage branch, and a fourth mounting groove for installing a control valve is provided on the second pressure relief passage branch.

8. The hydraulic block according to any one of claims 4 or 5, wherein, the hydraulic block further includes a liquid storage assembly, the liquid storage assembly includes a liquid storage tank and a liquid replenishing passage communicated with the liquid storage tank. The liquid storage tank is arranged in the hydraulic block body. The liquid inlet of the liquid replenishing passage is communicated with the liquid storage tank, and the liquid outlet of the liquid replenishing passage is respectively communicated with the first inlet and the second inlet; or the liquid storage tank is arranged at an interval from the hydraulic block body. The liquid inlet of the liquid replenishing passage is communicated with the liquid storage tank, and the liquid outlet of the liquid replenishing passage is respectively communicated with the first inlet and the second inlet.

9. The hydraulic block according to claim 8, wherein, the liquid replenishing passage is arranged in the hydraulic block body and includes a first liquid replenishing passage and a second liquid replenishing passage. The inlet ends of the first liquid replenishing passage and the second liquid replenishing passage are respectively communicated with the liquid storage tank. One of the outlets of the first liquid replenishing passage and the second liquid replenishing passage is communicated with the first inlet, and the other is communicated with the second inlet. A fifth mounting groove for installing a control valve is provided on the first liquid replenishing passage, and a sixth mounting groove for installing a control valve is provided on the second liquid replenishing passage.

10. The hydraulic block according to claim 9, wherein, a part of the first liquid replenishing passage and the second liquid replenishing passage close to the liquid storage assembly overlaps to form a common liquid replenishing passage. One of the part of the first liquid replenishing passage away from the common liquid replenishing passage and the part of the second liquid replenishing passage away from the common liquid replenishing passage overlaps with the first pressure relief passage branch, and the other overlaps with the second pressure relief passage branch. The third mounting groove coincides with the fifth mounting groove, and the fourth mounting groove coincides with the sixth mounting groove.

11. The hydraulic block according to claim 10, wherein, a seventh mounting groove for installing a control valve is provided on the common liquid replenishing passage.

12. The hydraulic block according to claim 4 or 5, wherein, the hydraulic block further includes a pressure maintaining passage, the pressure maintaining passage is respectively communicated with the first passage and the second passage, and a fifth mounting hole for installing a control valve is provided on the pressure maintaining passage.

13. The hydraulic block according to claim 5, wherein, a sixth mounting hole for installing a pressure sensor for monitoring the pressure in the pressure building passage is further provided on the hydraulic block body.

14. A hydraulic assembly, wherein, comprising a motor pump, at least one control valve, and the hydraulic block according to any one of claims 1-13, an outlet of the motor pump being in communication with the inlet of the hydraulic block, and a plurality of the control valves being correspondingly mounted on a plurality of mounting structures on the hydraulic block body.

15. The hydraulic assembly according to claim 14, wherein, the motor pump is configured as a bidirectional gear motor pump.

16. The hydraulic assembly according to claim 15, wherein, the control valve includes a plurality of solenoid valves and a plurality of check valves. The solenoid valves include a first solenoid valve installed in a first mounting hole on the hydraulic block body, a second solenoid valve installed in a second mounting hole, a third solenoid valve installed in a third mounting hole, a fourth solenoid valve installed in a fourth mounting hole, and a fifth solenoid valve installed in a fifth mounting hole; the check valves are respectively a first check valve installed in a first mounting groove on the hydraulic block body, a second check valve installed in a second mounting groove, a third check valve installed in a third mounting groove, and a fourth check valve installed in a fourth mounting groove. Among them, the first check valve and the second check valve convey unidirectionally towards the direction of the hydraulic braking subsystem, and the third check valve and the fourth check valve convey unidirectionally towards the direction of the motor pump.

17. A hydraulic suspension braking system for a vehicle, wherein, comprising a controller and a hydraulic suspension braking subsystem corresponding to each wheel of the vehicle. Each hydraulic suspension braking subsystem includes a hydraulic suspension subsystem, a hydraulic braking subsystem, and the hydraulic assembly according to any one of claims 14-16. The controller controls the motor pump and a plurality of control valves provided on the hydraulic block body to be connectable and disconnectable with the hydraulic suspension subsystem and the hydraulic suspension subsystem, so that the motor pump conveys hydraulic oil through the hydraulic assembly to the hydraulic suspension subsystem to adjust the suspension state of the wheel and to the hydraulic braking subsystem to adjust the braking state of the wheel.

18. The hydraulic suspension braking system according to claim 17, wherein, the hydraulic suspension subsystem includes a shock absorber, and a suspension oil inlet chamber and a suspension oil outlet chamber of the shock absorber are respectively connected to a first outlet and a second outlet in the first outlet of the hydraulic block body; the hydraulic braking subsystem includes a brake cylinder, and an oil inlet of the brake cylinder is connected to a third outlet in the second outlet.

19. The hydraulic suspension braking system according to claim 18, wherein, the hydraulic suspension subsystem further includes two flow valves, one of the flow valves being disposed between the suspension oil inlet chamber and the first outlet in the first outlet, and the other flow valve being disposed between the suspension oil outlet chamber and the second outlet in the first outlet.

20. A vehicle, wherein, comprising the hydraulic suspension braking system according to any one of claims 17-19.

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